Added an upgrade step to remove duplicate stamps, added a unique index
on (contextid, stamp) and modified the question_category edit code such
that stamp duplication in the same context is not permitted.
Derived table support was altered in MySQL 5.7 changing the way in which
DELETE FROM works in some cases.
This change modifies the way in which deletion occurs by selecting all IDs
and batching them into groups of 1000.
There are several improvements over what we had before:
1. We track all the questions seen in the the student's previous
quiz attempts, so that when they start a new quiz attempt, they get
questions they have not seen before if possible.
2. When there are no more unseen questions, we start repeating, but
always taking from the questions with the fewest attempts so far.
3. A similar logic is applied with variants within one question.
There is lots of credit to go around here. Oleg Sychev's students Alex
Shkarupa, Sergei Bastrykin and Darya Beda all worked on this over
several years, helping to clarify the problem and shape the best
solution. In the end, their various attempts were rewritten into this
final patch by me.
The new steps make it more efficient to create questions.
While making the changes, I took the opportunity to alter the tests to
follow Behat best practices, and only test one thing per scenario.
Some browsers do not bubble form submission events to the window, and we
had more than one form on the page in certain conditions. We need to select
all of the forms on a page and then test the action.
The following used steps were replaced by the ones
added in this issue:
- I fill the moodle form with
- I fill in with
- I select from
- I select radio button
- I check
- I uncheck
- the field should match
Also removing test for deprecated steps:
- the ASD checkbox should be checked
- the ASD checkbox should not be checked
In general aiming for compatibility with multiple browsers,
firefox, chrome and phantomjs to be more specific.
* Removing hardcoded waits
* Adding @_alert, @_switch_window and @_switch_frame tags,
to label actions that different drivers have problems with.
* Adding missing @_files_upload and @_only_local tags to features that
uploads files.
* Fixing a few wait for page ready what specified miliseconds.
* New methods to ensure elements (usual selectors), sections and editors
are ready to interact with
* Changing the select an option implementation to deal with the different
drivers implementations when listening to JS events.
- Escaping steps arguments redirected to other steps
- Adding normalized-space() in all contains() assertions
- General xpaths review
- Convering provided xpath text strings to xpath literals
to avoid problems with arguments containing both single
quotes and double quotes
1. Autosave works in some ways just like a normal save. We ultimately
call $behaviour->process_save() to do the work, and create a new step to
hold the data.
2. However, we come in through a completely different route through the
API, starting with separate auto-save methods. This keeps the auto-save
changes mostly separate, and so reduced the chance of breaking existing
working code.
3. When the time comes to store the auto-save step in the database, we
save it using a negative sequence number.
This is a clever trick that not only distinguises these steps, but also
avoids unique key errors when an auto-save and a real action happen
simultaneously. (There are unit tests for these tricky edge cases.)
4. When we load the data back from the database, most of the time the
auto-save steps are loaded back as if they were a real save, and so the
auto-saved data is used when the question is then rendered.
5. However, before we process another action, we remove the auto-saved
step, so it does not appear in the final history.
